222724039 has 2 divisors, whose sum is σ = 222724040. Its totient is φ = 222724038.

The previous prime is 222724037. The next prime is 222724087. The reversal of 222724039 is 930427222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222724039 - 2¹ = 222724037 is a prime.

Together with 222724037, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 222724039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222724037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111362019 + 111362020.

It is an arithmetic number, because the mean of its divisors is an integer number (111362020).

Almost surely, 2^222724039 is an apocalyptic number.

222724039 is a deficient number, since it is larger than the sum of its proper divisors (1).

222724039 is an equidigital number, since it uses as much as digits as its factorization.

222724039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 222724039 is about 14923.9418050326. The cubic root of 222724039 is about 606.1624523171.

The spelling of 222724039 in words is "two hundred twenty-two million, seven hundred twenty-four thousand, thirty-nine".